NORSAR

Located at Kjeller, north of Oslo, NORSAR runs and maintains seismic arrays in Norway and it is the designated Norwegian National Data Centre for the Comprehensive Nuclear Test Ban Treaty.

[4] NORSAR conducts basic seismological research, develops software and provides consultancy for the petroleum industry.

Its connection went via the Tanum Earth Station in Sweden to the Seismic Data Analysis Center (SDAC) in Virginia, United States.

[6][7] In turn, NORSAR provided the connection point for ARPANET to spread to Peter Kirstein's research group at University College London (UCL) the following month in July 1973.

Connecting through NORSAR, the Norwegian Defence Research Establishment (NDRE), along with UCL and RSRE in Britain, were involved in testing TCP/IP.